There will always be opinions, both good and bad on how MagicSpam protection, rules and policies are used, and what the defaults should be. Different environments may have different needs. We try to find the perfect balance, and that is not always easy. Just remember that we have to satisfy millions of users.. not just one person.

Thanks for bringing the issue with 'sender adress verification vs. valdi_from_domain_check' to our attention! We've made note of it persisting in the magicspam-plesk-1.0.5-3-lenny64-postfix.amd64.deb package and will escalate it to our development team for a fix to be created.